氢燃料超燃冲压发动机燃烧室非结构网格数值模拟  

Numerical simulations of hydrogen-fueled scramjet combustor flowfields on unstructured grid

作　　者：王兰[1] 吴颖川[1] 乐嘉陵[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《空气动力学学报》2009年第3期308-313,共6页Acta Aerodynamica Sinica

摘　　要：采用格点有限体积法离散积分形式Favre平均的三维Navier-Stokes方程,基于非结构、混合网格发展了CFD并行隐式流场解算器AHL-UNS3D。计算了Burrows和Kurkov的二维氢气顺喷的扩散和反应流,出口参数和实验值较吻合,证明了软件具备多组分扩散流和湍流反应流的模拟能力,并将该软件分别应用到了Hyshot计划的地面实验超燃冲压发动机和NAL的双模态燃烧室模型的氢气燃烧湍流反应流的二维和三维jet-to-jet数值模拟中,得到了与实验值及文献一致的计算结果。Integral 3-D Favre-averaged Navier-Stokes equations discretized by cell-vertex finite volume method, a CFD parallel implicit flow solver named AHL_UNS3D has been developed on unstructured/hybrid grid. The diffusion and reaction cases of the 2D parallel injection of Burrows and Kurkov＇s hydrogen parallel flow were computed and good agreement of exit parameter profiles with experimental data were gained, which validates the ability of AHL_UNS3D for the multispecies diffusion and turbulent reacting flow simula- tions. Applications of 2-D and 3-D jet-to-jet simulations to the reacting flows of Hyshot＇s scramjet model and the dual mode combustor model of NAL respectively were conducted and consistent results with the experiments and the references were gained.

关 键 词：超声速湍流反应流 非结构 混合网格 CFD并行隐式解算器 jet—to-jet 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]